protected static void vinv_dbug_ExitLayerReCalculateContent()
{
var debugVisualLay = dbugGetLayoutTracer();
if (debugVisualLay == null) return;
RenderElementLayer layer = (RenderElementLayer)debugVisualLay.PeekElement();
debugVisualLay.WriteInfo("<..L_RECAL_TOPDOWN :" + layer.ToString());
debugVisualLay.PopLayerElement();
}
protected static void vinv_dbug_BeginSetElementBound(RenderElement ve)